关键词: 磨削过程；接触区域；磨削温度；表面质量

Abstract:

The grinding temperature distribution and the grinding forces within the contact zone were measured by using a thermocouple and a 3-axis piezoelectric dynamometer,respectively.The morphologies of the ground workpiece surfaces were observed by a scanning electron microscope(SEM).A Talysurf was used to measure the surface roughness of the ground surface.It is found that the grinding parameters have serious effects on the grinding temperature, and the grinding temperature significantly interacts with the contact length.From the viewpoint of the generating mechanism and deformation state of chips,it is analyzed that the temperature of down grinding is higher than that of up grinding. The relation between the grinding temperature and the morphology of the ground surface was discussed,as well as the relation between the grinding temperature and the surface roughness of the ground surface.The grinding temperature has little effect on the surface roughness of the ground surface,provides that the grinding temperature is not high enough to cause an evident burnout on the ground surface.

Key words: grinding process;contact zone;grinding temperature;surface quality